Articles tagged with Mechanical Engineering
A new model developed by MIT engineers predicts how certain shoe properties will affect a runner's performance, incorporating factors like stiffness and springiness. The model aims to help designers create high-performing shoes with novel properties.
Researchers develop nanofibrous matrices containing MXene nanoparticles to aid in muscle regeneration. The study reveals molecular mechanisms behind the effects of MXene nanoparticles on muscle growth, suggesting a promising avenue for treating volumetric muscle loss and muscle-related ailments.
Undergraduate researcher Nguyen Vo-Bui's study reveals that residual stresses and dehydration are key factors behind carrot curling. The findings suggest that handling carrots in cold, moist environments can increase their edible life span.
Researchers have designed a new, affordable system to study neural interactions and compute using living neurons. The open-source MiV system boasts over 500 electrodes, offering improved control and precision in measuring neural processes.
Researchers outline new method to stabilize bulk hafnia in metastable ferroelectric and antiferroelectric states, paving the way for non-volatile memory technology. The approach requires less yttrium, improving material quality and purity.
A new technique using superluminescent light projection can print metal nanostructures at 480 times the speed and 35 times the cost of current methods. This breakthrough has the potential to democratize nanoscale 3D printing, making it accessible to more researchers and industries.
A team of researchers created a 3D bioprinted brain blood vessel model to investigate the impact of blood vessel curvature on metastatic cancer development. The model revealed that increased blood vessel curvature correlates with heightened cancer cell adherence and extravasation.
A team of researchers has created artificial small-diameter vessels (SDVs) featuring pores that enable the formation of an endothelium without additional processing steps. The 3D-printed vessels were successfully infused with human cells, demonstrating spontaneous cellular assembly and paving the way for potential transplantation and f...
Researchers have enhanced microvascular sensitivity using ultrafast ultrasound, capturing the three-dimensional vascular network of renal arteries and veins without contrast agents. This technique reveals sharp decreases in renal blood flow during acute renal failure and chronic vascular degeneration in diabetic nephropathy.
Researchers from the University of Leicester have discovered that 'synchronic' thermal fluctuations are responsible for friction in superlubricity. By lowering surface temperature, they can lower friction forces, opening doors to industrial applications with reduced energy consumption.
The Lehigh University Plasma Control Group is working on advanced controls and machine learning to improve plasma dynamics simulation capabilities and stabilize superheated gases in future reactors. The goal is to address technological issues with ITER and FPP, ensuring safe and controllable operation.
University of Waterloo researchers investigate how fuel cell-powered trucks can replenish overworked electricity grids with clean energy. The study proposes a mobile generator system, where idled electric vehicles act as power sources, reducing peak demand and carbon emissions.
Scientists achieve room-temperature quantum coherence by embedding a chromophore in a metal-organic framework, enabling the creation of quintet state qubits with four electron spins. This breakthrough could lead to the development of multiple qubit systems at room temperature, revolutionizing quantum computing and sensing.
Researchers investigate grain size and temperature effects on Ti deformation at extremely low temperatures, finding that cryogenic temperatures trigger deformation twinning, boosting strength and ductility. The study proposes a modified Hall-Petch relationship to explain strengthening mechanisms at cryogenic temperatures.
Researchers have developed twisted ringbots that can roll forward, spin like a record, and follow an orbital path around a central point. These devices can navigate and map unknown environments without human or computer control.
Researchers at MIT find that slow-flowing liquid crystals can spontaneously assemble into large, twisted, chiral structures, opening a new path to generating chiral materials. These structures could serve as spiral scaffolds for assembling intricate molecular structures and be used as optical sensors.
A soft, wearable robot was used to help a person living with Parkinson’s disease walk without freezing, eliminating the debilitating symptom and allowing them to regain their independence. The device provided instantaneous effects and consistently improved walking in a range of conditions.
Researchers at Binghamton University have used environmental transmission electron microscopy to study the atomic-level mechanisms of water vapor-induced surface passivation. They discovered a second amorphous layer that diffuses oxygen into the substrate, indicating a transport mechanism that slows down corrosion.
Researchers at PolyU developed a cooling ceramic with a hierarchically porous structure, inspired by the whitest beetle, to achieve high solar reflectivity and efficient light scattering. This innovation has potential energy-saving applications and is the first study on the Leidenfrost effect in passive radiative cooling materials.
A research team developed electrostatic materials capable of responding to weak ultrasound, generating static electricity for implantable neurological stimulators. The technology eliminates the need for batteries, reduces device size, and minimizes strain on the human body. Experimental validation confirms its effectiveness in animal m...
Researchers at Tohoku University have engineered a novel device combining piezoelectric composites with carbon fibers, transforming kinetic energy into electricity for efficient motion sensing. The new device has been tested to withstand over 1000 stretches and surpasses other materials in terms of energy output density.
Researchers have developed a novel light source that minimizes interference zones, enabling stable and accurate information transmission. The technology utilizes conventional lighting systems, such as LEDs, to facilitate the simultaneous transmission of large amounts of data.
The researchers designed a capsule about the size of a multivitamin, powered by a small battery, which vibrates to activate mechanoreceptors in the stomach. This activation stimulates hormone release patterns similar to those following a meal, reducing food intake and slowing weight gain by 40 percent.
A research team led by Professor Yuan Lin has made a major breakthrough in showing how plastic strain develops in individual cells and propagates within the tissue. The study reveals the biophysical mechanisms behind cellular and tissue plasticity at different scales, providing critical insights for regenerative medicine.
The National Science Foundation has awarded Lehigh University $6 million to develop a comprehensive, inclusive and accessible research translation ecosystem. The award supports the university's work in engineering, science, health, humanities, business, education and other areas to translate discoveries into practical solutions.
A $161 million grant from the DOD will support research into tunable thermal conductivity and latent heat storage effects in materials. The new equipment enables analysis across a wide temperature range and various pressures and humidity levels, paving the way for adaptive materials with dynamically tunable phase change properties.
Researchers at North Carolina State University have identified a welding technique that can join composite metal foam components without impairing their properties. The new method uses induction welding, which penetrates deeply into the material and insulates it against heat.
Researchers at UC Santa Barbara developed an adaptive roof tile that can switch between heating and cooling modes based on temperature. The device, powered by a wax motor, has been shown to reduce energy consumption for cooling by 3.1x and heating by 2.6x compared to conventional devices.
Researchers developed AI tools to systematically explore metamaterials' design and mechanical properties, predicting optimal structures for desired deformation responses. The tools can generate and optimize new structures using large datasets and variational autoencoders.
Researchers have developed an ion-exchange method that captures CO2 at room temperature, paired with an electrochemical cell to purify the gas. The technology has the potential to be powered by industrial waste heat or geothermal energy, reducing emissions and costs.
The new robotic replica, called RRV, can mimic healthy and diseased states, allowing scientists to test cardiac devices and therapies. The model can also be used to study the effects of mechanical ventilation on the right ventricle and develop strategies to prevent right heart failure.
Purdue University researchers have found that polaritons can contribute a larger share of thermal conductivity in semiconductors, overcoming phonon limitations. By understanding how to design materials and structures, manufacturers can incorporate these polariton-based nanoscale heat transfer principles into chip designs.
Researchers developed a novel approach to integrate multiple functions into a single chip using monolithic 3D integration of layered 2D materials. This technology offers unprecedented efficiency and performance in AI computing tasks, enabling faster processing, less energy consumption, and enhanced security.
Purdue researchers found that graphene's thermal conductivity is lower than previously thought due to four-phonon scattering. The team predicted the material's thermal conductivity at room temperature to be 1,300 W/(m K), which is less than diamond and raw graphite.
A new composite material, engineered using computer algorithms and 3D printing, can change its behavior in response to temperature changes. The material is designed to perform specific tasks depending on the environment, enabling future generations of autonomous robotics.
Researchers discovered that impure ice is less sticky than pure ice due to its unique structure and quasi-liquid layer. The study found that slow freezing processes preserve contaminants within the ice, leading to weaker adhesion. This discovery could lead to the design of next-generation winterization techniques.
Researchers found that honeybees' cluster behavior is a survival strategy against cold temperatures, not insulation. The study suggests that beekeepers should reconsider their hives' design and materials to reduce heat loss.
Researchers developed a lightweight wearable balance exercise device to improve reactive postural control in older adults, reducing the risk of falls. The device uses pneumatic artificial muscles to generate unexpected perturbations, resulting in improved peak displacement and velocity.
Researchers at ETH Zurich developed an autonomous excavator called HEAP to construct a 6-meter-high and 65-meter-long dry-stone wall. The excavator uses sensors, machine vision, and algorithms to place stones in the desired location, achieving a high level of precision and speed.
Researchers developed an integrated wearable sensor device using gold nanowires to measure multiple bio-signals simultaneously. The sensors demonstrated remarkable performance in detecting muscle tremors, heartbeat patterns, and body temperature changes.
The University of Hong Kong's 'Super Steel' team has developed a novel stainless steel with superior corrosion resistance, enabling its potential application in green hydrogen production from seawater. The new steel exhibits comparable performance to current industrial practices using Titanium while being much cheaper.
Researchers developed an ingestible capsule to measure vital signs from within the GI tract, detecting sleep apnea episodes and breathing rate depression. The device shows promise for early detection of respiratory changes, including those caused by opioids or asthma/COPD.
Engineers at MIT have developed a new laser-based technique to probe metamaterial structures with ultrafast pulses, enabling the dynamic characterization of microscale metamaterials. The LIRAS system excites and measures vibrations in hundreds of miniature structures within minutes, accelerating the discovery of optimal materials for a...
Researchers at Stanford University discovered that breast cancer cells use a collective, physical mechanism to break through the basement membrane barrier. In a 3D hydrogel model, cancer cells trapped within duct-like structures swelled and stretched, weakening the basement membrane and allowing escape.
A team of researchers has developed a novel experimental system to simultaneously measure the mechanical properties and internal structure of rubber-like materials. The study found that strain within these materials is non-uniform, depending on the shape and size of composite particles.
Researchers have successfully engineered a soft robotic replica of a 450-million-year-old marine organism, pleurocystitid, to better understand its biomechanical factors and locomotion. The study introduces the field of Paleobionics, which uses Softbotics to explore evolution and animal design.
Researchers developed a wireless, leadless pacemaker that can partially recharge its battery by converting mechanical energy into electrical energy. The device harvested approximately 10% of the energy necessary to pace the next beat, paving the way for longer battery life and reduced procedures for younger patients.
A team of researchers at MIT has discovered a process where light can directly cause evaporation without heat, exceeding the thermal limit. This phenomenon could explain natural phenomena like fog and clouds, and enable new approaches to desalination.
Scientists from Japan create a new, more efficient form of liquefied stabilized soil from construction waste that can fill narrow spaces and be pumped over long distances. The material has improved flowability and lower environmental impact, making it suitable for large-scale civil engineering projects.
Researchers developed a new method that allows designing 3D-printed metal parts with varying strength levels, electrical conductivity, or corrosion resistance. The technique uses 3D-printing steps and can reduce manufacturing costs.
A team of researchers from POSTECH successfully engineered a dual metalens capable of switching between different imaging modes using a single lens. This innovation enables fast mode-switching and acquisition of high-resolution images for applications such as bio-imaging and cellular reactions.
A HKU engineering team has achieved a major breakthrough in battery technology by developing a high-performance quasi-solid-state magnesium-ion (Mg-ion) battery. The new design offers a sustainable, safe, and high-energy-density alternative to conventional lithium-ion batteries.
A new project aims to help robots assess risks and make autonomous decisions. The research focuses on quantifying ambiguity in robot perception to improve safety and efficiency.
Researchers at George Mason University are developing innovative biomass-based porous structures for energy-efficient water desalination and purification. The project aims to create a capacitive deionization process using spatial wood carbon scaffolds with nanocellulose fillers.
Researchers discovered a wide range of organisms, including microbes and humans, exhibit similar movement patterns to navigate their surroundings. These patterns are thought to be linked to uncertainty management in the brain.
Researchers at Harvard John A. Paulson School of Engineering and Applied Sciences have developed a system that uses atomic vacancies in silicon carbide to measure the stability and quality of acoustic resonators, which could improve communications and offer new control for quantum computing. The technique also allows for acoustically-c...
A team of researchers from City University of Hong Kong and Shanghai Jiao Tong University has developed a novel aluminium alloy with unprecedented fatigue resistance using advanced 3D printing techniques. The new alloy, called NTD-Al, surpasses the fatigue strength of high-strength wrought Al alloys and conventional metals.
Researchers created a hydrogel mat with magnetic microparticles that mimic the forces of exercise. The team found that regularly exercising muscle cells resulted in longer, aligned fibers, and improved contraction capabilities.
A team of researchers developed soft yet durable materials that glow in response to mechanical stress, using single-celled algae and a seaweed-based polymer. The materials demonstrate inherent simplicity, no electronics needed, and can be used as mechanical sensors or soft robotics, while also being resilient and self-sustaining.
Researchers have developed soft implantable fibers that can deliver light to major nerves through the body, allowing for precise illumination of nerve pain. The fibers are flexible and stretch with the body, enabling scientists to study peripheral nerve disorders in animal models without constraining movement.